Top-notch gaming facility in Las Vegas. May very-well be the very best of Las Vegas gaming and entertainment. The MGM family of casinos and hotel brands have got to be the biggest in the gaming world.
Mandalay Bay also offers amazing experiences like the legendary Carlos Santana playing nightly at the on-site House of Blues, or the gorgeous Mandalay Bay Beach Club which has something for everyone (Daylight, Moorea European Beach Club, the main Mandalay Bay Beach Club, and my personal favorite the Delano Beach Club).
I would also urge anyone interested in the pools to consider a cabana reservation as mandatory. Worth every penny :)